#parentBox {
    position: fixed;
    z-index: 999;
}

#btnBox {
    position: fixed;
    bottom: 30px;
    left: 60px;
    z-index: 999;
}

#streamVideoBox {
    display: none;
}

#stream {
    width: 200px;
}

#video {
    width: 400px;
}

#cDiv_video {
    width: 400px;
    position: fixed;
    width: 300px;
    height: 300px;
    left: 100px;
    top: 100px;
    z-index: 999;
}

.cDiv_stream {
    position: fixed;
    border-radius: 50%;
    width: 150px;
    height: 150px;
    left: 100px;
    top: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    z-index: 999;
}

.cDombtn {}